1. Geoboard 7X7 One blue 8-1/16" x 8-1/16" square frame with a 7/16" border Thickness 1 side of the square frame has lines of 7 x 7 pins (49 total) Each separated by 1" embossed lines that form 6 x 6 1" squares 1 side has 1 pin in each of the 4 corners, approximately 3/4" From each edge 1 pin is directly in the center, surrounded by 24 pins that form A 7" diameter Making the radius from the edge of the circle to the center pin 3-1/2" This side had a total of 29 pins The thickness of the pins on both sides of the board including The board should total 7/16" 2. Fantastic Math Geoboard 3. Excellent and High quality in competitive price 4. Export standard 5. OEM accepted 6. Different colors available.

